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advent-of-code-2021/day-02/day-02.py
2021-12-02 18:17:58 +01:00

41 lines
889 B
Python

#!/usr/bin/python3
def part_1(input):
h_pos = 0
depth = 0
for line in input:
step = line.split()
if 'forward' == step[0]:
h_pos += int(step[1])
elif 'up' == step[0]:
depth -= int(step[1])
elif 'down' == step[0]:
depth += int(step[1])
result = h_pos * depth
print("Part 1 result:", result)
def part_2(input):
h_pos = 0
depth = 0
aim = 0
for line in input:
step = line.split()
if 'forward' == step[0]:
h_pos += int(step[1])
depth += aim * int(step[1])
elif 'up' == step[0]:
aim -= int(step[1])
elif 'down' == step[0]:
aim += int(step[1])
result = h_pos * depth
print("Part 2 result:", result)
input = list()
with open('input.txt') as fp:
input = fp.readlines()
part_1(input)
part_2(input)